Skip to content
SALES HOTLINE: 01274 488388
My Account
Menu Toggle
Orders
RMA
Shipping and Returns
Manufacturer Info
About Us
Contact us
Main Menu
My Account
Menu Toggle
Orders
RMA
Shipping and Returns
Manufacturer Info
About Us
Contact us
Search
Below Header
Categories
Manufacturers
Menu Toggle
Brands-Menu
Boiler Parts
Menu Toggle
From Alphabet A – C
Menu Toggle
Actuator – Motor
Air Pressure Switch
Aqua Sensor & Hall Sensor
Auto Air Vent
Burner & Injector
Bush, Tail Plate & Seal
Bypass
Cartridge
Casing & Insulation
Clamps, Clips, Disk & Screws
Clock – Timer
Connections
Control Knob & Switch
From Alphabet D – H
Menu Toggle
Diaphragm & Membrane
Diverter & Zone Valve
Electrode & Lead
Expansion Vessel
Fan Assembly & Impellor
Fan Flue Connector
Filling Valve & Key
Filter
Flow Switch
Fuse & LED Lights
Gas & Water Section
Gas Valve
Heat Exchanger
Hydraulics & Manifolds
From Alphabet I – P
Menu Toggle
Isolation Valves & Taps
Microswitch
Mirror – Neon – Glass
O-rings, Washers, Gaskets & Seal
PRV – Safety Valve
Pipes, Tubes & Hoses
Pressure – Temperature Gauge
Pressure Reducing & Mixing Valve
Pressure Switch
Printed Circuit Board & Relay
Pump
Pump Over Run
From Alphabet R – Z
Menu Toggle
Radiants and Coals Accs
Service Kits
Siphon, Condensate Trap & Accs
Solenoid & Magneto
Spark Generator & Piezo
Thermistor – NTC – Sensor
Thermocouple & Oxypilot
Thermostat & Potentiometer
Transformer
Venturi – Press Tube
Water Governor & Regulator
Wiring Harnesses
Wires, Leads & Cables
Boiler & Acc
Menu Toggle
Column 1
Menu Toggle
Boiler
Clock – Programmer
Deflector
Elbow – Bend
Flue Guard
Extension
External Expansion Vessel
Filling Loop
Column 2
Menu Toggle
Filters
Flue – Connector
Out Door Sensor
Pipe & Valve Cover
Plume Kit
Roof Tile
Secondary PRV
Stand Off Frame
Water Heater
Column 3
Column 4
Consumables
Menu Toggle
Column 1
Column 2
Menu Toggle
Air Duster
Cleaning Brush / Blade
Closure Plate-PTFE Tape
Connectors / Clips
Gas Inspection Pads and Records
Gas Leak Detection
Ignition Lead
Inspection Mirror
Jointing Paste
Lamp / Torch
Column 3
Menu Toggle
Manometer, Gauge ,Acc
Misc
Safety-Labels-Stickers-Tags
Screw – Nuts
Sealants & Lubricants
Sealing Tape-Glass Yarn
Smoke Pellets and Matches
Tube
Vessel Pump – Checker
Washers – Gaskets
Column 4
Controls
Menu Toggle
Cylinder Stat
Frost Stat
Outside Sensor
Pipe Stat
Programmer
Roomstat
Wiring Centre
Catering
Menu Toggle
Cooker Chain
Cooker Fittings
Cooker Hoses
Gas Fire Parts
Menu Toggle
Column 1
Column 2
Menu Toggle
Coals / Radiants / Spray
Control Knob
Electrode / Lead
Fixing Kit
Flue
Flue – Spigots
Column 3
Menu Toggle
Gas Tap
Microswitch
Pilot Burner / Injector
Spark Generator
Thermocouple & Oxypilot
Column 4
Heating / Plumbing
Menu Toggle
Column 1
Column 2
Menu Toggle
Chemicals
Fittings
Filters
Expansion Vessels / Acc
Filling Loop
Column 3
Menu Toggle
Pumps
Radiators
Radiator Key
TRV & Lockshields
Valves
Column 4
Test / Safety
Menu Toggle
Column 1
Column 2
Column 3
Menu Toggle
Alarms
Carry Cases
Chargers & Batteries
Filters
Flow Cup
Flue Gas Analysers
Gas Leak Detector
Column 4
Menu Toggle
Multimeters
Pressure Meters
Printers & Paper Rolls
Probes & Clamps
Smoke Pump
Thermometers
Tools
Menu Toggle
Column 1
Column 2
Column 3
Menu Toggle
Allan Keys
Flow Cup
Pipe Slice / Cutters
Pliers
Screw Driver
Socket Set
Spanner / Wrench
Column 4
Menu Toggle
Inspection Mirror
Multibender Guide
Olive Remover / Puller
Pipe Prep
Soldering / Brazing Torch
Tool Case
Home
/
Boiler, Flue & Accessories
/ Extension
Filter By Manufacturer
Filter By Manufacturer
Alpha (0)
Altecnic (0)
Andrews Water Heaters (0)
Arctic & Hayes (0)
Ariston (2)
ATAG (0)
Bahco Tools (0)
Baxi (10)
Biasi (0)
BritTherm (0)
Broag-Remeha (1)
C.K (0)
Caleffi Hydronic Solutions (0)
Cannon Gas Fire (0)
Chaffoteaux (0)
DAB (0)
Danfoss Controls (0)
Dewalt (0)
Dickie Dyer (0)
Dilog (0)
Drayton Heating Controls (0)
EPH Controls (0)
Esi Controls (0)
Everbuild (0)
Fernox (0)
Ferroli (2)
Flavel (0)
Focal Point Fires (0)
Gazco (0)
Giannoni Diverter Valve (0)
Gledhill (0)
Glen Dimplex - GDC (0)
Glowworm (2)
Grant (0)
Grundfos Pumps (0)
Halstead (0)
Heating Spares247.com (0)
Heatline (0)
Heatrae Sadia (0)
Honeywell Controls (0)
Horstmann Controls (0)
Ideal (2)
Inta - Intatec (0)
Intergas (4)
Interpart - Baxi Genuine Parts (0)
Irwin (0)
Johnson & Starley (0)
Kane (0)
Keston (0)
Kinder (0)
Knipex Tools (0)
Kopex (0)
Legend Fires (0)
Magnaclean (0)
Main Heating (7)
Misc (0)
Miscellaneous (0)
Monument (0)
Myson (0)
Navigator (0)
Nerrad (0)
Potterton (6)
Pro (0)
Procombi (3)
Procombi Exclusive (2)
Protherm (0)
Radiant (0)
Ravenheat (0)
Regin Products (0)
Ridgid Tools (0)
Rinnai (0)
Rocol (0)
Rothenberger (0)
Salus Controls (0)
Saunier Duval Spares (0)
Sentinel Heating Systems (0)
Siemens Heating Controls (0)
Silverline (0)
Silverline Tools (0)
Sime (0)
Stanley Tools (0)
Sunvic Controls (0)
Talon (0)
TFC Group (0)
Thorn (0)
Vaillant (7)
Verine Gas Fire Parts (0)
Viessmann (0)
Vokera By Riello (5)
Wera (0)
Wonderfire (0)
Worcester Bosch (1)
Zilmet (0)
Showing 1–36 of 53 results
Default sorting
Sort by popularity
Sort by latest
Sort by price: low to high
Sort by price: high to low
Ariston 1M Flue Extension 3318077
£
35.36
(Inc. VAT)
Add to basket
Out of stock
Ariston S/Eff 1M Extension 3318005
£
36.43
(Inc. VAT)
Read more
Baxi 0.25m Flue Extension 60/100 25 720643101
£
42.12
(Inc. VAT)
Add to basket
Baxi 0.5m Flue Extension 60/100 720643001
£
47.69
(Inc. VAT)
Add to basket
Out of stock
Baxi 1m Flue Extension 241695
Read more
Baxi 1m Flue Extension 60/100 720648801
£
63.58
(Inc. VAT)
Add to basket
Baxi HE 125mm Flue Extension 1m 5118584
£
75.49
(Inc. VAT)
Add to basket
Baxi PDK 1M Extension Kit – Black 720643301
£
41.34
(Inc. VAT)
Add to basket
Baxi PDK inc 1Mtr Extension 720622901
£
113.60
(Inc. VAT)
Add to basket
Baxi Plume Displacement Kit 1m Extension 720643401
£
44.03
(Inc. VAT)
Add to basket
Baxi Plume Displacement Kit with 1M Extension and Clips (white) 7225717
£
224.11
(Inc. VAT)
Add to basket
Ferroli 1m Flue Extension 1KWMA56U
£
74.42
(Inc. VAT)
Add to basket
Ferroli Condensing 1M Concentric 100mm Pipe 1KWMA57W
£
86.59
(Inc. VAT)
Add to basket
Glowworm 0.5m Flue Extension 0020257007
£
47.74
(Inc. VAT)
Add to basket
Out of stock
Glowworm 1.0m Flue Extension 2000460482
Read more
Out of stock
Ideal 1M Flue Extension 203129
£
74.93
(Inc. VAT)
Read more
Ideal High Level 1 Metre Extension Kit 203228
£
35.98
(Inc. VAT)
Add to basket
Intergas 1M Extension Inc Bracket 082975
£
52.26
(Inc. VAT)
Add to basket
Intergas 500mm Flue Ext 60-100 082979
£
36.66
(Inc. VAT)
Add to basket
Intergas Plume 1000mm Extension 081286
£
53.04
(Inc. VAT)
Add to basket
Out of stock
Intergas Rapid Flue Extension 60/100 (1000 mm) 086649
£
34.50
(Inc. VAT)
Read more
Main 0.25m Flue Extension 60/100 25 720643101
£
42.12
(Inc. VAT)
Add to basket
Main 0.5m Flue Extension 60/100 720643001
£
47.69
(Inc. VAT)
Add to basket
Main 1m Flue Extension 60/100 720648801
£
63.58
(Inc. VAT)
Add to basket
Main 600mm Telescopic Horizontal Flue Assembly 430184
£
166.44
(Inc. VAT)
Add to basket
Out of stock
Main Combi Plume Kit 1m Extension 5121368
Read more
Main PDK inc 1Mtr Extension 720622901
£
113.60
(Inc. VAT)
Add to basket
Main Plume Displacement Kit with 1M Extension and Clips (white) 7225717
£
224.11
(Inc. VAT)
Add to basket
Potterton 0.25m Flue Extension 60/100 25 720643101
£
42.12
(Inc. VAT)
Add to basket
Potterton 0.5m Flue Extension 60/100 720643001
£
47.69
(Inc. VAT)
Add to basket
Potterton 1m Flue Extension 60/100 720648801
£
63.58
(Inc. VAT)
Add to basket
Potterton PDK inc 1Mtr Extension 720622901
£
113.60
(Inc. VAT)
Add to basket
Potterton Plume Displacement Kit with 1M Extension and Clips (white) 7225717
£
224.11
(Inc. VAT)
Add to basket
Out of stock
Potterton Plume Kit 1m Extension 5121368 NLA
Read more
Procombi 0.5m Flue Extension 20132060
£
38.10
(Inc. VAT)
Add to basket
Procombi 1m Flue Extension 20132061
£
46.66
(Inc. VAT)
Add to basket
1
2
→